Rx or most commonly refers to a medical prescription.

RX, Rx, , or rx may also refer to:

Arts and entertainment

  • ' or Rx, a novel by Elizabeth J. Braswell writing as Tracy Lynn
  • Rx (band), an industrial rock band
  • Rx, a 2016 album by Ryan Beaver
  • Rx, a 2024 album by Galantis
  • "Rx (Medicate)", a song by Canadian rock band Theory of a Deadman
  • "rX" (The Gifted), an episode of the television series The Gifted
  • Kamen Rider Black RX, a Japanese superhero television series
  • Rx (film), a 2005 romantic thriller film

Science and technology

Computing and electronics

  • Rx (receive, receiver or reception), in various telecommunications applications
  • Rx, the receive signal in the RS-232 serial communication standard
  • Rx, the remote procedure call mechanism used by the Andrew File System
  • RX, the audio repair software by iZotope
  • Radeon RX series, a series of graphics products in the AMD Radeon 400 series
  • Reactive extensions, originally for .NET, later ported to other languages and environments
  • Rx bridge, a device for measuring the characteristic resistance and impedance of antenna or feedline system
  • RX meter, a term used in electrical engineering
  • RX microcontroller family, by Renesas Electronics

Vehicles

  • Lexus RX, a series of luxury crossover SUV
  • Mazda RX, a series of sport cars
  • South Australian Railways R class (Rx class locomotive), of the South Australian Railways
  • Yamaha RX 100, a 2-stroke Yamaha motorcycle

Other science and technology

  • Retinal homeobox protein Rx, a transcription factor in vertebrate eye development
  • Roket Eksperimental, an Indonesian experimental rocket series

Organisations

  • Regent Airways (former IATA code: RX), a former Bangladeshi airline
  • Riyadh Air (IATA code: RX), a Saudi airline
  • RX, formerly Reed Exhibitions, an exhibition company now part of RELX

Other uses

  • Monster RX 93.1, Philippine radio station
  • Prescribed burn (Rx burn), in forest management
  • Rallycross, a motor sport<!--fails WP:DABACRO-->
  • Rye, East Sussex (fishing boat registrations: RX), UK
  • , a numismatic abbreviation for reverse